Sheet-metal vessel



(No Model.)

P. A. WALSH. SHEET METAL VESSEL.

Patented Feb. 11', 1890 lllllllll ll Illlllilllll INVSNTU KM A. WTM

ATTORNEYS WITNESSES N. PEYERS Phchrlilllognpher, Wamhinglm. n. c.

"Iran STATES Farmer rrioE.

FRANCIS A. IVALSH, OF MILWVAUKEE, IVISCONSIN.

SHEET-METAL VESSEL.

SPECIFICATION forming part of Letters Patent No. 421,213, dated February11, 1890*.

Original application filed February 18, 1884:, Serial No. 121,072.Divided and this application filed August 1, 1887. Serial No- 245,832.(No model.)

To all whom it may concern:

Be it known that I, FRANCIS A. WALSH, of Milwaukee, in the county ofMilwaukee, and in the State of Wisconsin, have invented certain new anduseful Improvements in Sheet Metal Vessels; and I do hereby declare thatthe following is a full, clear, and exact description thereof.

My invention relates to the construction of sheet-metal vessels, andwill be fully described hereinafter, and pointed out in the claims.

In the drawings, Figure 1 is a side elevation of a vessel constructedaccording to my present invention, and Fig. 2 is a vertical section ofthe same.

A is the body of the vessel, which is formed of asheet of metalcontinuous from top to bottom, bent so as to be circular incross-section, and united only by a vertical lap-seam E 5 or, ifdesired, the vesselbody may be in more than one piece, and hence theremay be more than one vertical lap-seam E, but in any case the body pieceor pieces must be continuous and integral from top to bottom. After thebody has been formed and the lap sides secured together its upper edgeis subjected to the action of a former, that gives an internal roll tothe metal, as shown at a, which not only strengthens it, but presents asmooth and rounded surface, over which the cover C may be easilyslipped. This rolled edge a may be either single or double, and iswholly free from any extraneous internal support when made and projectsinside the vessel as shown.

D represents the bottom plate of the vessel, preferably united by arolled or beaded seam cl, as set forth specifically in my applicationfiled February 18, 1884, Serial No. 121,072, of which this presentapplication is a division.

13 is a bead formed on the body A a short distance below the top, theobject of which is to receive the lower edge of the rim of theslip-cover C, so that, though the body tapers above the bead, the covermay be nicely fitted to it, a further advantage being that the said beadB holds the cover far enough away from the outside of the body near thelower edge of the rim of the cover to there form a chamber Z) for thereception of suitable pack= ing, and thereby form an air-tight joint,and thus secure the preservation. of the contents of the vessel, whilethe internally-rolled rim to facilitates the placing of the slip cover 0thereover and presents no obstructions to retard this or interfere witha tight contact of the cover and top of the body.

In order that there may be no obstruction to the ready inrolling of thetop of the body in forming the rolled rim a, I have shown the edge ofthe sheet which overlaps to form the vertical seam E as cut away at 6,so as to present less metal at the point of rolling the top of the bodywhere the said vertical seam occurs, and I have also shown said edgesimilarly cut away at 6 below for a like reason.

My vessels are preferably tapering, as

shown, and thereby are adapted to be nested one within the other.

I am aware that heretofore a sheet-metal vessel has been provided withan independent sheet-metal collar stamped or formed up of a single pieceof sheet metal and afterward seamed or soldered to the body of thevessel, the said collar having an internal bead and an outwardhorizontal flange turned down at its outer edge and there seamed orsoldered to the body of the vessel, as above stated, producing a vesselwith a reduced or constricted mouth or opening, and such I do not claim,as in my present invention the internally rolled upper rim is formeddirectly 011 and out of the body of the vessel and in one and the samepiece therewith.

I am aware that it has been proposed to form a sheet-metal vessel ofcylindrical form with a continuous inwardly-rolled edge at the top witha Wire seated or seamed in the rolled edge. I do not claim this,broadly. I deem it important that the inward. roll at the top beunsupported by a wire and that the edge of the metal forming the roll berolled under and up in contact with the outer Wall of the vessel, asshown in Fig. 2, leaving three thicle nesses of the metal upon ahorizontal line centrally through the roll. makes a complete finishinside without s01- der, and secures the edge of the metal againstdisplacement, the pressing on of the cover serving to bind the outerwall of the vessel against the inturned edge of the roll and the in-This adds strength,

turned edge of the roll serving to prevent bending inward or indentingof the upper edge or mouth of the vessel. The outer edge of the top ormouth of the vessel is rounded, as shown at f, and the edge of the coveror lid-- that is, its junction of the top with the rim is rounded, asshown at F in Figs. 1 and 2, to conform to the rounding of the mouth ofthe Vessel. This forms a better and snugger fit of the cover to thevessel. These features render my vessel stronger and better for thepurposes for which it is to be used.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. A sheet-metal vessel the body of which is circular in cross-sectionand provided at its top with a continuous inwardly-rolled edge and at asuitable distance below said edge an outwardly-proj ecting bead,combined with a cover having a depending rim extending over and engagingsaid projecting bead, substantially as specified.

2. As an improved article of manufacture,

a sheet-metal vessel having an inward roll at its mouth, a bead belowsaid roll, and an inwardly-tapered portion extending from the roll tothe bead, substantially as shown and described.

3. A sheet-metal vessel circular in crosssection and formed at its upperend or mouth with a continuous inward roll with rounded outer edge andan outwardly-projecting bead below the upper edge, combined with a coverhaving a depending rim of suflicient length to extend over and engagesaid bead and a rounded edge f between the rim and the body of thecover, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand, atMilwaukee, in the county of Milwaukee and State of VVisconsin, in thepresence of two witnesses.

FRANCIS A.- WALSH. WVitnesses:

H. G. UNDERWOOD, MAURICE F. FREAK.

